Machine for dyeing fibrous materials.



APPLICATION FILED NOV. l2, 1907.

Patented Mar. 3, 1914.

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MACHINE FOR DYEING FIBROUS MATERIALS.

APPLICATION FILED Nov.12,19o7.

1,089, 1 O2, Patented Mar. 3, 1914.

5 SHEETS-SHEET 2.

@wwwa/som f T. ALLSOP 5 W. W. SIBSON.

MACHINE FOR DYEING FIBROUS MATERIALS.

APPLICATION HLED 110mm, 1907.

Patented Mar. 3, 1914.

5 SHEETSSHEET 3.

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T. ALLSOP '6; W. W. SIBSON. MACHINE FoP. DYBING FIBRoUs MATERIALS.

APPLICATION FILED NOV. 12, 1907.

LSQ, l 0%.. www@ my. 3, 1914.

5 SKBETE-SHEET 1.

T. ALLSOP & W. W. SIBSON.

MACHINE FOR DYBING FxBRoUs MATERIALS.

APPLICATION FILED NOV. 12, 1907.

Patented MarL3,1914.

5 SHEETS-SHEET 5.

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'UNrrnn srarnsiarnnr OFFICE.

'Il'.I-IOMAS ALLSOP AND WALTER W. SIBSON, OF PHILADELPHIA, PENNSYLVANIA,

ASSIGNORS TO THE PHILADELPHIA 'DRYING MACHINERY COMPANY, 0F PHILA-DELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

MACHINE FOR DYEING FIBROUS MATERIALS.

Specification of Letters Patent.

Patented Mar. 3, 1914.

Application filed November 12, 1907. Serial No. 401.888.

[o all whom it may concern Be it known that we, THOMAS ALLsor andlVaL'rnR lV. SisoN, citizens of the United able others skilled in theart to which itappertains to make and use the same.

This invention relates to improvements in i machines for dyeing fibrousmaterials, and

has special reference to machines of this; character for dyeing hosieryby the sulfur `nientary detail elevation illustrating the black processThe present invention has in view the prodrain board guides. Fig. 3 1s adetail plan duction of a machine of the character stated embodying inits construction certain fea tures by which the action of the dye uponthe hosiery being treated will be more uniform throughout the entiremass of the same than is commonly the case, thereby effecting a betterdistribution of the dye, and imparting to the resultant product asuperior nish.

The invention also aims to provide a dye- .ing machine comprehending aself-contained circulatory system through the medium of which the dyeliquor may be readily fed to the dye vat for action upon the goodstherein, removed from the vat when the goods have been subjected to theaction of the dye to the required extent, and stored for subsequent useupon other goods, and by which the dyed goods'may be also readily washedwhile in the dye vat, thereby dispensing with the necessity of removingthe goods to other vats for this purpose, and eliminating the labor andinconvenience incident thereto, the machine being thus enabled tooperate with economy in the use of the dye liquor and preventing undueconsumption and waste of the latter.

Having these general objects in View, and others that will appear as thenature of the improvements is better understood, the invention consistssubstantially in the novel construction, combination and arrangement ofparts as will be hereinafter fully described, illustrated in theaccompanying.

drawings, and pointed out in the appende claims.

`While the form of the `inventimi made i the basis of this disclosure isbelieved to be a preferred embodiment thereof, it is to be understoodthat the same is not restricted to such embodiment, but beingsusceptible of various changes in the form, proportion and minor detailsof construction, the right is reserved to modify or vary the inventionas falls within the spirit and scope thereof.

In the drawings. Figure l is a plan View of a dyeing machine constructedin accordance with and embodying the principles and features of thepresent invention. Fig.-v2 is an end elevation thereof. Fig. 3 is alongitudinal sectional View of the dye vat.. Fig. 4 is a transversesectional view of the internal drum thereof. Fig. 5 is a fra-g manner ofsupporting and connecting the view of one of thel doors of the internaldrum of the dye vat. Fig. 7 a side elevation of the belt shifting deviceemployed for actuating the internal drum of the dye vat. Figs. 8 and S)are plan and end views, respectively, thereof. Fig. 10 is a sideelevation of the means for supporting the driving shaft and the gearingfor operating the internal drum of the dye vat. Fig. 1l is adiagrammatic view illustrating another form of the machine wherein thereservoir for the dye liquor is placed in a plane below the dye vat.

As premised, the present invention con templates the provision of adyeing machine comprehending a self-contained circulatory system, with aView to operating the machine under the most economical conditions inthe use and re-use of the dye liquor, and referring in detail to thedrawings, the numeral l designates the dye vat of the machine. This vatcomprises a drum circular in cross section, and formed of a lowersection 2 and an upper section 3, each of said sections hav ing a flange41 traversing its edges, which flanges are secured in engagement witheach other through the medium of a series of fastening bolts 5. Byimparting to the drum 1 this two-part construction, it is quite obviousthat ready access may be had to the interior thereof for introducingtherein and removing therefrom the construction to be hereinafterdescribed.

Arranged at thebottom of the drum l is an opening 6, which openingserves the dual function'of an inlet and outlet for the dye liquor, andconnected to said opening, through the medium of a coupling 7, is aninlet pipe 8 that leads to the rear of the drum, which pipe is ofrelatively large dimensions in order to permit free passage of the dyeliquor to the drum. The pipe S is connected to the coupling 7 by meansof a T-coupling 9, one end of which is reduced in diameter toaccommodate a water inlet pipe 10 arranged parallel to the axis of thedrum 2, to which pipe is -connected a quick-opening gate valve 11, andthrough the medium of said valve water is introduced to the drum forwashing the goods after the same have been subjected to the action ofthe dye liquor. At the rear end of the pipe S is a T-coupling 12 fromwhich leads a verticallydisposed pipe 13 that enters the bottom of astorage reservoir 14, and this reservoir receives and contains the dyeliquor with which the vat is fed from time to time. he reservoir 14 ismaintained at an elevated point, in order that the dye liquor thereinmay be fed by gravity into the vat, and arranged in the pipe 13 is aquick-opening gate valve 15 whereby communication is controlled betweenthe dye vat and the resen voir.

Connected to the co-upling 12, and eX- tending at right angles to thepipe 8, is a branch pipe 16, which branch pipe is connected to a pump17, preferably of the rotary type. This pump is provided with a pulley1S by which the pump is driven from any suitable source of power, andintermediate the pump 1T and the coupling 12 is a quick-opening gatevalve 19. Thus it will be seen that communication may be establishedbetween the pump 1T and the pipe 8, or cut off as the case may be, aswill appear more fully hereinafter. A discharge pipe 2O leads from thepump 17, the same extending in a vertical direction, and having ahorizontally-disposed elbow 21 that enters the top of the reservoir 14.By reason of this it is manifest that the discharge from the pump willbe directed into the reservoir 14. A discharge pipe 22 is also arrangedat the under side of the dye vat, said pipe being connected to thecoupling 'T and having a quick-opening discharge valve 23. The functionof this pipe is to lead off from the vat 1 any dye liquor that it is notdesired to return to the reservoir 14, and also the water introduced tosaid vat for washing the dyed material therein. The vat 1 is alsoprovided with a steam pipe 24., which pipe, at the interior of the vat,is perforated for discharging the steam therefrom into the dye liquor inthe vat, and through the medium of this pipe such dye liquor may bebrought to the boiling point when such is required. The dye vat 1 isfurther provided with suitable supports 25 for sustaining the saine inhorizontal posit-ion, and elevating the vat sufficiently above the flooror base upon which it is placed to accommodate the various pipeconnections at the under side thereof.

A hinged door 26 is connected to the upper section 3 of the dye vat toenable ready access being had to the interior thereof, this door beingin the form of a segment of the upper section 3, and to maintain thedoor 26 in elevated position a plurality of angular supports 2T isarranged at the top of the section 3, against which the door 26 willrest when raised to such elevated position.

ll'ithin the drum 1 is arranged a rotary internal drum 2S. This drum isperforated at its sides and ends, as at 29, and being of smallerdimensions than the drum 1, a space is provided around the periphery ofsaid internal drum for receiving the dye liquor, rhe latter.` however,by reason of the perfor-ations 29, readily enters the internal drum 2S,and thus is enabled to have free access to the goods to be dyed, whichgoods are placed within the internal drum. The drum 2S is provided withjournals 30, said journals being arranged at-the ends of said drum, andthese journals are received by vertically-extending slots 31 formed inthe ends of the lower section 2 of the drum 1. Suitable journal boxes 32are arranged in juxtaposition to said slots.y and located upon theextremity of each of said journals, at the exterior of the drum 1, is agear wheel by which rotation is imparted to the drum 2S. Meshing witheach of these gear wheels 33 is an idler gear 34e, said gears 3e beingjournaled in suitable bearings carried by the drum 1, and said idlers Sialso mesh with pinions 85 carried by a longitudinally-extending shaft 36that is arranged at the rear side of the drum 1 and suitably journaledthereat. Thus it will be seen that power applied at each end of theinternal drum 2S, so that the operation thereof is uniform. and thepower for such operation evenly distributed thereto. F or operating theshaft 3G a pulley 3T is tightly connected thereto, and arranged ateither side of said pulley 3T are loose pulleys 38, a belt-shiftingdevice 39 being associated with said pulleys. By means of this shiftingdevice 39, to be presently described in detail, the shaft 3G is causedto rotate alternately in reverse directions, this operation of the shaft36 causing the internal drum 2S to first rotate in one direction to alimited eX- tent. which movement is reversed, and this alternaterotation of the drum continuing during the time required for dyeing thematerial. within the drum.

Arranged Within the internal drum 28, and spaced from each other aroundthe periphery thereof, is a series of breakers or lifters 40, saidbreakers or lifters being in the form of angle irons projected in a di!rect-ion longitudinally of the drum, the base flanges of these angleirons beingsuitably connected to the drum in order to maintain them atsuch spaced intervals. The function of these breakers or lifters is toengage the hosiery or other material being dyed in order to raise thesame in the rotation of the drum 28 to a certain point in such rotation,thereby permitting the goods to be agitated, and effectually exposingall portions of the same to the action of the dye liquor, the goodsfalling back into the dye liquor when each of t-he breakers or liftershas arrived at a certain point. The drum 9,8 is also preferably dividedinto compartments through the medium of heads 4l. These heads el arealso perforated, as at 42, to permit the dye liquor circulatingtherethrough, and are also preferably flanged, as at. 43, for convenientapplication and attachment to the interior of the drum 28. .By dividingthe drum QS into compartments as described, it is obvious that themachine is adapted for simultaneously dyeing different classes of goods,the goods being effectually separated fromY each other, and interferring.in ne wise with each other during the dyeing operation. Where, however,it is not required to simultaneously dye diiferent classes of goods, orwhere the capacity of the machine does not justify a series ofcompartments, it is quite evident that the heads stl may be omitted.This is especially true of small machines, where it is only necessaryfo-r a single compartment to be included in the internal drum.

To enable ready access being had to the maintain the doors in lockedposition uponv said drum. These doors are also perforated in a mannersimilar to the sides and ends of the drum 28 for the circulation of thedye liquor.

It has also been indicated as one of the objects of the presentinvention to provide a dyeing machine having certain features ofconstruction by which the dyed goods may be removed therefrom withfacility and ease, to the end that no undue strain upon the operativesduring such removal may be exert ed. For this purpose each of thecompartments is provided at each of its ends With a pair oftransversely-extending guides 46, said guides being in the form of angleirons reversely arranged to each other and having their base flangesconnected to the ends and heads of the drum 28. The guides of each pairare spaced from each other, as clearly shown in Fig. 5, the flanges t3of the ends and heads being cut avvay, as also clearly seen in Fig. 5,to provide a notch i7 in each of said ends and heads, which notches arecoincident with the spaces between the guides a6. The guides 46 aredesigned to receive removable drain boards d8, when the internal drum isprovided with a series of compartments, but when the drum is not sodivided it is manifest that only a single board will be employed. iVhenplaced in the guides i6 the drain boards 48 extend entirely across thediameter of the drum 2S, and thus subdivide the compartments thereofeach into two smaller compartments.'

When the. drain boards are so positioned, the goods being at the bottomof the internal drum, a half rotation of the drum Will bring the goodsto the upper sides of the drain boards, which being perforated, as at419, the dye liquor will pass therefrom back to the bottom of the vat,and the goods will thus be relieved of the surplus dye. The drum 28 alsohas a series of supplemental hinged doors 50, which doors are arrangedupon the drum at points diametrically opposite to the doors a4, and thesupplemental doors 50 are also reversely hinged with respect to themanner of hinging the doors sist. The purpose of these supplementaldoors 50, in conjunction vvith the doors 4st, is to facilitate theintrmluction of the drain boards to the drum QS, and the removal of thedyed goods from said drum. Obviously, therefore, when either of thedoors 4.4L or 50 are opposite the portion of the vat l covered by thedoor 2G thereof, said doors will permit the intrmluction of the drainboard, as previously described, whereupon, these doors having beenclosed upon the internal drum and the latter having been given one-halfof a rotation, the doors at the opposite side of the internal drum willbe presented to the open side of the vat, and will thereby permit thegoods that have been brought to the upper side of the drain boards to bereadily removed from the drum. In this position thedrain boards aresubstantially horizontal, and the operatives are only required to reachinto the internal drum for removing the dyed goods therefrom. In thisthey are not subjected to the undue strain of stooping in order to bringup the dyed goods from the bottom of the vat, as is commonly the case,this feature being a decided advantage in the use of the presentmachine.

In order to lock the internal drum 2S against rotation an outwardlyproject-ing stud 51 is arranged at one end of the upper section 2 of thedrum l, and slidably mounted upon said stud is a sleeve 52 having atooth 53 depending from its under side to enter the spaces between theteeth of the gear 33 that is j ournaled at such end of the drum, adepending pin 54 being carried by the stud 5l to limit the outwardmovement of the sleeve 52 thereon. This sleeve 59. is also provided witha handle 55 by which the sleeve may be readily moved upon the stud 5l.vWhen the sleeve 52 is so engaged with the wheel the latter is preventedrotating in either' direction, and hence the drum 28 is held in a fixedposition.

Referring now to F 7 S and 9, it will be observed that the belt-shiftingdevice includesa iioor stand 56 the upper end of which is provided witha bearing 57 that receives one end of the shaft 36. Formed adjacent tosaid bearing is a flattened head 58 having openings 59 designed toreceive fastening bolts 60, and mounted upon the shaft 36 adjacent tothe head 5S is a bracket 6l that has a flattened face 62 which bearsagainst the head 5S. Through the medium of the bolt or bolts 60 thebracket 6l is held in fixed relation to the head 53. A sleeve 63included as a part of the bracket 6l receives the shaft 36, and thus thebracket 6l is capable of a swinging movement upon said shaft. Thepurpose of this will presently appear. Arranged at the lower end of thebracket 6l is a depending curved arm 64; to which a lever 65 ispivotally connected by means of a stud 66, and said lever 65 has at apoint intermediate its ends an elongated slot 67 wherein a roller 68carried by a stud 69 is adapted to move. The stud 69 is, in turn,carried by a worm wheel 70, said wheel being rotatably mounted upon astud 7l connected to the bracket 6l, the wheel 70 meshing with a worm 72 that is carried by the shaft 36. It will thus be seen that through theworm 72 the worm wheel 70 rotates in unison with the shaft 36, and byreason of the pivotal connection of the lever 65 with the bracket 6l,and the stud and slot connection with the worm wheel 70, said lever iscapable of a reciprocatory movement. upon the bracket 6l. Arranged atthe upper end of the bracket 6l is a guide 73 in which is slidablymounted a shifting rod 74, said rod 7-l being held in the guide 73through the medium of clamping blocks 75. A latch 76 is pivotallymounted between parallel ears 77 carried by the rod 74, and said latchis received by the upper bifurcated end 78 of the lever 65. Thus it willbe seen that a detachable connection is adorded between the shifting rod74 and the lever 65, and when the latch 76 is in the positionillustrated in the drawings the rod 74 will receive reciprocatorjvmovement in the guide 73 under the impulse of the lever 65. lVhen,however,

the latch is disengaged from said lever the latter will continue tooperate, but the shifting rod 74: will remain stationary. It will beobserved that the sides of the guides 73, in the Zone of movement of thelever 65, are convex, and one of said sides is provided with a notch 79into which the latch 7 6 may be entered should it be desired to lock theshifting rod 74 against movement. The shifting rod 7 et projects overthe pulleys 37 'and 3S, and connected to said projecting rod is a sleeveS0 that is adjustably mounted upon the rod 74. To the sleeve S0 isconnected a supporting rod 3l, which rod is also adjustably in relationto the sleeve 80. At each end of the rod Sl is a belt guide S2, saidguides being adjustably connected upon the rod S1, but said guidesextend in opposite directions to each other. These guides are designedto each receive a separate belt from a suitable source of power, saidbelts operating in reverse directions, so that when shifted to the tightpulley 37 the direction of movement thereof will be alternatelyreversed. The shifting of the belts in relation to the respectivepulleys is effected through the -medium of the worm wheel 70, the worin72, and the lever 65 operated thereby, so that it is obvious that as thelever 65 moves to and fro the belts carried by the respective guides S2will be alternately shifted from the loose to the tight pulleys, andimpart to the internal drum 23 of the vat rotation in oppositedirections. Through the medium of the flattened head 5S, and the abilityof the bracket 6l to be swung upon the shaft 36, it will be seen thatthe upper end of said bracket may be moved to either side of the shaft36, thereby positioning the belt guides 82 in different positions withrespect to the periphery of the pulleys, and when so positioned the boltor bolts 60 will hold the brackets 6l therein. This provides for theadaptation in position of the guides 32 to different angles of positionoccupied by the belts that furnish power to the machine.

In F ig. l0 is disclosed more in detail the construction employed forsupporting the driving shaft 36 and the idler gears 3a, and referringparticularly to that figure it will be noted that each journal box 32has formed integrally therewith an attaching plate S3havingarearwardly-extending arm 84C at the free end of which is formed aplurality of outwardly-extending perforated ears S5, and said plate S3,with its projecting arm 34:, is secured to the end of the drum l throughthe medium of rivets 36, or their equivalent. This, therefore, providesa firm fastening for the plate 33, and holds the journal box 3Q inposition to effectually support the journal 30 therein. The box 32 isprovided with a gland 87, so that each of the journal boxes 32 performsthe function of a stuffing box, thus preventing passage of the dyeliquor from the drum l at the journals A supporting plate S8 havingadjacent its ends a plurality of elongated slots 89 is arranged inalineinent with the .arm Se, the forward end of said plate vcoincidencewith the door 2G.

having outwardly -projecting perforated ears 90 that lie coincident withthe ears 85, and fitted in said ears 85 and 90 are bolts 91. The slots89 also receive bolts 92, and through the medium of the latter and theslots 89 it is apparent that the supporting plate 88 is adjustable uponthe drum 1 toward and away from the arm 84, the degree of suchadjustment being Aeffected by the bolts 91. The plate 88 carries abearing 93 in which the journal of the idler gear 34 is received, and atthe extremity of the plate 88 is a bearing 94, which bearing receivesthe driving shaft 86. By mounting the plate 88 in adjustable relation tothe arm 84, it is apparent that dierent sizes of idler gears may beemployed between the gear 33 and the pinion 35, thus enabling differentspeeds to be imparted to the internal drum. Through the medium ofcollars 95 carried by the driving shaft 96, and positioned thereonbetween the bearings 94 and the pinions 35, thrust of the driving shaft36, in the direction of its length, is prevented.

In the operation of the hereindescribed dyeing machine the tank 14 isusually provided with a supply of the dye liquor. To introduce thelatter to the vat the valve 19 is closed, and the valve 15 opened, itbeing understood that the valve 23 of the discharge pipe 22 is likewiseclosed. The dye liquor thereupon enters the vat to the neoessary extent,and the valve 15 being closed, the goods to be dyed having beenintroduced to t-he internal drum, the machine is set in operation. Inthe rotation of the drum 28 the goods are thoroughly agitated andsubjected to the action of the dye, and when a sufficient period hastranspired to impregnate the goods with the dye to the required extent,the valve 19 is opened. The pump 1.7 having been set in operation, thedye liquor is withdrawn from the vat, and forced back to the reservoir14, if it be de sired to save that particular part of the dye liquor tothe action of which the goods were being` subjected. The valve 19 beingnow closed, water is introduced through the pipe l0, and the goods arethereby washed, and this water may be readily withdrawn from the vat byopening the valve 23. To remove the goods from the machine, the drum 28is rotated sufficiently to bring either the doors 44 or 50 to a pointopposite the door 26 of the drum 1. lVhen so positioned the drain boards48 are introduced to the respective compartments, or to the interior ofthe drum 28 if the latter is not divided into compartment-s, whereuponthe drum 28 is rotated partially, as also previously described, to bringthe other doors thereof into This movement places the dyed goods at theupper side of the drain boards, and permits them to be readily removedfrom the vat without any unnecessary strain on the part of theoperatives, and also freed entirely of the surplus water, or dye shouldthe goods not be subjected to the washing action of the water. Undyedgoods being now introduced to the drum 28, a like operation is repeated,and this continued indefinitely. As previously stated, the belt-shiftingdevice 39 operates automatically to impart to the drum 28 movement inreverse directions alternately, and during such movement the breakers orlifters 40 raise the goods and permit them to fall back into the dyeliquor in order to present from time to time new surfaces of the goodsto the action of such liquor.

It will be understood that the drain boards are not placed within thedrum 28 until it is desired to remove the goods, and in lieu ofproviding the drum 28 with two sets of diametrically-opposite doors,said drum may be provided with a door or doors only at one side, and atthe diametricallyopposite side of the drum a slot may be provided ofsufficient dimensions only to permit the introduction of the drainboards to the guides therefor. Under these conditions it is manifestthat the same function will be performed by the drain boards.

n Fig. 11 is disclosed diagrammatically another' form of the inventionwherein the reservoir for the dye liquor is arranged in a plane belowthe plane of the vat, and referring to that figure the numeral 9Gdesignates the vat which is, in all essentials, similar to the specificconstruction described in connection with the other form of the machine.To the lower end of the vat 96 is connected a coupling` 97 from whichleads a pipe 98 having a quick-opening gate valve 99 arranged therein,said pipe 98 entering the top of a. reservoir 100 for receiving the dyeliquor. To the lower end of the reservoir 100 is connected a pipe 101,which pipe, in turn, connects with the inlet side of a. pump 102 thedischarge of which is connected to a pipe 108 that extends upwardly andconnects with a pipe 98 at a point between the coupling 97 and the valve99. Leading from the coupling 97 is a discharge pipe 104 having aquick-opening gate valve 105, in a manner similar to the discharge pipein the other form of the machine, and connected to the vat 9G,preferably at the upper side thereof, is a water supply pipe 106 forintroducing to the vat 96 the necessary water for .washing the materialafter treatment by the dye liquor.

In the form of machine illust-rated in Fig. 11 it is obvious that withthe valves 99 and 105 closed, and the pump 102 in operation, the dyeliquor will be taken from the tank 100, forced upwardly through the pipe103 into the pipe 98, and introduced to the vat 96, where the materialbecomes impregnated therewith, and if it is desired to save this dye,the valve 99 is opened, and the dye liquor will ret-urn by gravitythrough the pipe 98 to the reservoir 100. Tater is then introducedthrough the pipe 106 to the vat 96 for washing the dyed material, afterwhich this water is led off through the pipe 104i when the valve 105thereof has been opened. It will thus be seen that the operation of themachine illustrated in Fig. l1 is in all respects similar to the otherform oi' the machine, and differs only from the same in feeding the dyeliquor from the reservoir to the vat by the pump, in lieu of permittingthe dye liquor to flow from the reservoir to the vat by gravity, the dyeliquor returning from the reservoir to the vat by gravity incontradistinction to being forced bach to the same through the medium ofthe pump, as is the case with the form of the invention illustrated inFigs. l to 4L.

In the use of either form of the machine the pump is placed at a pointbelow the level of the dye liquor in either the vat or the reservoir inorder thatrthe pump may be readily primed by the dye liquor.

Having thus described the invention, what is claimed as new, and desiredto be secured by Letters Patent, is:

l. In a dyeing machine, a vat, a reservoir for the dye liquor, a pipeconnecting said vat and the reservoir and through which the dye liquoris introduced to and removed from the vat, a valve arranged in saidpipe, a pump connected to said pipe at a point between said valve andthe vat, a valve interposed between the pump and said pipe, a secondpipe connected to the discharge of said pump and the reservoir forconveying the dye liquorl from the pump to the resero voir, a water pipeconnected to the rst mentioned pipe for introducing wash Water to thevat, a valve in said water pipe for controlling connnunicationtherethrough, and a valved discharge pipe leading from the vat.

2. In a dyeing machine, a closed vat comprising a two-section outerdrum, the upper section of which is provided with a hinged door, and aninner drum rotatably mounted therein, a reservoir for the dye liquor, apipe connecting said vat and the reservoir and through which the dyeliquor is introduced to and removed from the vat, a valve arranged insaid pipe, a pump connected to said pipe at a pointbetween said valveand the vat, a valve interposed between the pump and said pipe, a secondpipe connected to the discharge ot said pump and the reservoir forconveying the dye liquor from the pump to the reservoir, a valved waterpipe connected to the first mentioned pipe for introducing wash water tothe interior of the Vat, and a valved discharge pipe leading from thevat.

In testimony whereof we aiiiX our signatures, in the presence of twowitnesses.

THOMAS ALLSOP, VALTER IV. SIBSON.

lVitnesses Y L. R. GARRETSON RALPH INI. ERwIN.

Copie: of this patent may be obtained for ve cents each, by addressing'the Commissioner of Patenti.

Washington, D. C.

